baber/WOPTO huggingface dataset:
Patent CA-1205494-A (CA)
Inventor: KIFF BEN W
IPC: C07C31/08
Filed: 1983-09-30
Granted: 1986-06-03
Abstract: PRODUCTION OF ETHANOL FROM ACETIC ACID             ABSTRACT OF THE DISCLOSURE       Ethanol is produced from acetic acid by esterifying the acetic acid with an olefin having at least 4 carbon atoms, hydrogenating the ester obtained into ethanol and a higher alcohol having at least 4 carbon atoms, removing the ethanol, dehydrating the higher alcohol back to the original olefin and recycling the olefin to esterify the acetic acid.
Patent CA-1231392-A (CA)
Inventor: SWENDSON DAVID L
IPC: A61N1/362
Filed: 1983-10-06
Granted: 1988-01-12
Abstract: FLEXIBLE TIP CARDIAC PACING CATHETER                ABSTRACT OF THE DISCLOSURE          A flexible tip catheter for electrically stimu-lating the heart comprising an elongated body having an elongated passage therein and an enlongated conductor par-tially in the passage.  The elongated conductor has a dis-tal end portion outside of the passage which is flexible and resilient along its length.  The distal end portion includes a flexible resilient electrode exposed at the outer periphery of the catheter so that current can be passed along the conductor to the electrode to electrically stimulate the heart.  The flexi-bility of the distal end portion and of the electrode greatly reduces the risk of penetration of the heart wall.
Patent CA-1217899-A (CA)
Inventor: KOHYAMA MASAKI
IPC: C08F210/16
Filed: 1983-10-25
Granted: 1987-02-10
Abstract: ABSTRACT OF THE DISCLOSURE            An ethylene copolymer having the following character-istics (A) to (I):  (A) it has a melt flow rate of from 0.01 to 200 g/10 min.; (B) it has a density of from 0.900 to 0 945 g/cm3; (C) it has a composition distribution parameter (U), defined by the equation U - 100 x (Cw/Cn - 1) wherein Cw is the weight average degree of branching, and Cn is the number average degree of branching, of not more than 50; (D) the amount of components hav-ing a degree of branching of not more than 2/1000 carbons is 15% by weight based on the ethylene copolymer; (E) the amount of com-ponents having a degree of branching of at least 30/1000 carbons is not more than 15% by weight based on the ethylene copolymer; (F) the average chain length ratio of the methylene groups is not more than 2.0; (G) it has n melting points measured by a differential scanning calorimeter (DSC) (where n>2); the highest melting point (T1) among these DSC melting points is given by the equation T1 = (175 x d - 46)°C ~ 125°C (d is the density of the copolymer); the difference between T1 and the lowest melting point (Tn) among the DSC melting point is given by 0°C < T1 - Tn < 18°C; and the difference between T1 and the second highest melting point T2 is given by 0°C < T1 - T2 < 5°C, provided that when there are two (n=2) DSC melting points, the difference is in accordance with the above expression 0°C < T1 - Tn < 18°C; (H) the ratio of the amount of heat of crystal fusion (H1) at the highest melting point (T1) to the total amount of heat of crystal fusion (HT) is given by 0 < H1/HT < 0.40, (I) it is a copolymer of ethylene with at least one C4-C20 .alpha.-olefin.
Patent CA-1204763-A (CA)
Inventor: LIPINSKI CHRISTOPHER A
IPC: C07D233/78
Filed: 1983-12-02
Granted: 1986-05-20
Abstract: ABSTRACT OF THE DISCLOSURE        Spiro-oxazolidones, -thiazolidones and -imidazolidones of the formula below are prepared which are useful as aldose reductase inhibitors and as therapeutic agents for the treatment of complications arising from diabetes:                               I and the pharmaceutically acceptable salts thereof, wherein U is oxygen, sulfur or nitrogen substituted with hydrogen  or alkyl having 1-4 carbon atoms; n is zero or one; R is hydrogen or alkyl having 1-4 carbon atoms; W is carbonyl or hydroxymethylene; X is hydrogen, bromo, chloro, iodo, alkyl having 1-4 carbon atoms, di-methyl or (CH2)mQ wherein m is 1 or 2 and Q is phenyl or halo-phenyl, with the proviso that when X is dimethyl, n is one; Y is hydrogen, halo, nitro, trifluoromethyl, alkoxy having 1-4 carbon atoms or alkyl having 1-4 carbon atoms; Z is hydrogen, halo, nitro, trifluoromethyl, alkoxy having 1-4 carbon atoms or alkyl having 1-4 carbon atoms, with the proviso that is either Y or Z is nitro the other is hydrogen.
Patent CA-1227771-A (CA)
Inventor: R ED HARALD
IPC: B66C23/66
Filed: 1983-12-05
Granted: 1987-10-06
Abstract: HOISTING MEANS                         Abstract Hoisting arrangement having a boom (2) or a crane with two separately driven hoist wires (10, 16) each with its individual cargo hook (7, 8). The cargo hooks along with the hoist wires are used for various lifting operations. The hoist wires and a topping wire (5) are operated by their respective winches (9, 15 and 4). The hoist wires (10, 16) are connected via their winches (9, 15) to a common power supply system via a selection valve (34) whereby a constant tension is exerted in the hoist wire. The winches (9, 15) are adapted to pay out hoist wire if the pull in the hoist wire exceeds this constant tension and to draw in hoist wire if the pull falls below the constant tension.
Patent CA-1234462-A (CA)
Inventor: MINKS WERNER
IPC: H01H50/02
Filed: 1984-03-02
Granted: 1988-03-29
Abstract: METHOD OF SEALING A RELAY     ABSTRACT OF THE DISCLOSURE     A relay is sealed with a sealing compound when the relay housing is in a closed state, thus causing an air cushion to be formed in the inside, with an afterglow of sealing compound into the interior being prevented.  Fol-lowing gelling or curing of the sealing compound, a vent hole is pierced into the relay housing which, if required, may be closed following degassing of the interior space of the relay.
Patent CA-1213204-A (CA)
Inventor: FETTY HAROLD D
IPC: B60C11/117
Filed: 1984-03-07
Granted: 1986-10-28
Abstract: Abstract of the Disclosure A pneumatic radial passenger tire having a ground-engaging tread portion 12 and a pair of axially opposed tread edges.  The tread portion 12 comprising at least two circumferential continuous grooves 16,17 formed by alternately disposed axially and circumferential extending segments.  Each of the segments have a particular angle orientation.  There is also provided additional grooves 30,38 connecting the circumferentially extending grooves and which extend from the axially outer circumferential grooves 17 to the tread edge.
Patent CA-1242910-A (CA)
Inventor: CROISET PIERRE
IPC: G02B7/18
Filed: 1984-03-28
Granted: 1988-10-11
Abstract: ABSTRACT OF THE DISCLOSURE           A method and a device for suspending and driving into oscillation a space telescope oscillating mirror connected to a support whereby angular motions of the oscillating mirror around an oscillation axis are controlled from an auxiliary  mass which is  adapted  to  oscillate  around  said  oscillation  axis,   and potential  energy  is  momentaneously  stored,  for  example  in elastic form, when said oscillating mirror and said  auxiliary mass come close in opposed phase to respective extreme angular positions.  These  oscillating  mirror  and  auxiliary  mass  are preferably connected to the common support through flexible rods bound to said support. Dynamic oscillations in the support are thus  minimized  so  as  to  allow  precise  observation  in  two neighbouring directions, particularly for celestial scanning.
Patent CA-1213042-A (CA)
Inventor: HOOVER JOHN W
IPC: G11B15/18
Filed: 1984-04-09
Granted: 1986-10-21
Abstract: PORTABLE DICTATING MACHINE                  Abstract of the Disclosure A tape drive system for a dictating machine, partic-ularly a portable dictating machine of a size suitable to be held in one hand.  The dictating machine has a compartment which receives a tape cassette having a pair of reels, and a pair driving spindles engage with the tape reels for driving the latter.  A tape drive capstan and back-up roller are located adjacent the tape cassette compartment.  A motor is located at the opposite end of the dictating machine from the tape cassette compartment, and a multi-stage speed reduction belt and pulley drive system is located between the motor and the drive capstan for simultaneously driving the drive capstan and the tape reel driving spindles at a uniform rate of speed.
Patent CA-1239829-A (CA)
Inventor: DORREICH KURT A
IPC: A23L21/10
Filed: 1984-04-17
Granted: 1988-08-02
Abstract: ABSTRACT OF THE DISCLOSURE           A method for enzymatic treatment of predejuiced mash originating from fruits or vegetables, by addition of an aqueous medium in order to form a viscous mass, and by addition of an enzyme preparation comprising cellulases, hemicellulases, and pectinases to the viscous mass, wherein the enzyme preparation is an SPS-ase preparation is disclosed.
Patent CA-1245938-A (CA)
Inventor: FOGARTY THOMAS J
IPC: A61M25/00
Filed: 1984-05-02
Granted: 1988-12-06
Abstract: DEFLECTOR GUIDING CATHETER ABSTRACT OF THE DISCLOSURE A catheter is provided with a lumen which extends along most of the length of the catheter and then curves outwardly to terminate in a port for the passage of guide wires and catheters through the lumen into branch arteries.
Patent CA-1193491-A (CA)
Inventor: TING EA-LU PRINCESS AVENUE WIL
IPC: B63B35/79
Filed: 1984-05-07
Granted: 1985-09-17
Abstract: ABSTRACT    In an oar for propelling surfboard, It is known to have a buoyancy compartment, one end of the compartment is connected to a shaft and the other end to a tubular shaped section.  This newly invented oar with buoyancy can be used by surfer in standing position to keep balance and move forward.  The propulsion is produced by the horizontal resultant force of buoyancy force from the oar and pushing force exerted by the surfer, and by the resistance of water on the moving oar.
Patent CA-1215013-A (CA)
Inventor: MALETTE WILLIAM G
IPC: C12R1/91
Filed: 1984-05-14
Granted: 1986-12-09
Abstract: Abstract of the Disclosure A method of altering growth and development,  and suppressing contamination by microorganisms in cell or tissue culture  is  described  and  comprises  the  steps  of:   1) differentially enhancing or  supressing  the growth  and development of specific cells, 2) providing a non-protein matrix for three-dimensional tissue growth,  and 3)  preventing or suppressing contamination of microorganisms by placing chitosan or chitosan derivatives in contact with the cell culture.  The chitosan employed in this method is 45 to 100% de-acetylated and has a molecular weight of 10,000 to 2,055,000.
Patent CA-1223602-A (CA)
Inventor: OHASHI NAOHITO
IPC: C07D405/12
Filed: 1984-05-22
Granted: 1987-06-30
Abstract: ABSTRACT OF THE DISCLOSURE         A process for producing racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine represented by the formula                        [I], which comprises phthaloylating the amine group of a racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine derivative represented by the general formula                       [IV]     (wherein R1 and R2 each represents a hydrogen atom or a methyl group, or R1 and R2 jointly form a methylene group, provided that R1 and R2 do not simultaneously represent hydrogen atoms) to yield a racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxy-phenyl)serine derivative represented by the general formula, [III]    wherein R1 and R2 are as defined above; if necessary in the case in which the compound of formula [III] is in racemic form, subjecting the racemate to optical resolution through the reaction with one of the optically active amines to yield an optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)serine derivative represented by the general formula [III]; treating the racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)serine deri-vative represented by the above formula [III] with a Lewis acid to yield racemic or optically active threo-or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl-serine represented by the formula,   [II];     \   if necessary in the case in which the compound of formula [II] is in racemic form, subjecting the racemate to optical resolution through the reaction with one of the optically active amines to yield an optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxypheny)serine represented by the above formula [II], and removing the phthaloyl group from the racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)-serine to yield the racemic or optically active threo-or erythro-3-(3,4-dihydroxyphenyl)serine represented by the above formula [I].
Patent CA-1215607-A (CA)
Inventor: BERGLUND BENGT
IPC: F24F11/75
Filed: 1984-05-28
Granted: 1986-12-23
Abstract: ABSTRACT OF THE INVENTION         IMPROVEMENTS IN FLUID FLOW CONTROL VALVES      A fluid flow control valve which is responsive to the  pressure drop occurring  across  the  valve  in  order to  maintain  a  substantially  constant  volume  of  fluid flow regardless of the pressures appearing at the upstream and  downstream  sides  of  the valve has  a  valve  casing with an  inner  face  that  widens  outwardly from a fluid inflow end  to a fluid outflow end,  and a valve member which is  convex    towards  the  fluid  inflow end of the casing and  is  axially movable relatively to the casing in order to vary the annular gap between the valve member and the valve casing.  Means for sensing the fluid press-ures at points spaced from the valve member on the up-stream  and  downstream  sides  thereof   are  coupled  to a fluid  pressure  actuating  mechanism for acting directly upon the axially movable valve member in order to vary the  axial  position  of  the  valve  member  in  accordance with the pressure drop across the valve.   The valve is biased towards its open position by a biasing-means pre-senting  a  force  proportional  to  the  closing  movement of  the valve member,  and  the  shape  of  the  inner face of the valve casing is so profiled that the coefficient of resistance presented by the valve is directly propor-tional to the linear closing movement of the valve member.     This  enables direct  adjustment  of  the valve member  in response to the sensed pressure drop, without the require-ment  for  any  intermediate  control  mechanism  to compen-sate for the characteristics of the valve.
Patent CA-1213030-A (CA)
Inventor: RODNEY PAUL F
IPC: E21B47/18
Filed: 1984-06-20
Granted: 1986-10-21
Abstract: ABSTRACT OF THE DISCLOSURE   An electronic noise filtration system for use in improving the signal to noise ratio of acoustic data transmitted from a downhole  transducer  in  a  measurement  while  drilling  system.          Signals from a pair of receiving acoustic transducers located in the mud flow path directed downhole are input to a differen-cing amplifier.   The RMS output of the amplifier is converted from an analog to a digital signal and then processed by a com-puter programmed with a least mean squares technique for mini-mizing the signal.   The input from one receiving transducer is routed through a delay line wherein a programmable clock controls the timing of the signal delay.  The delay time is controlled and adjusted by the computer's  calculation of  the frequency with which the clock should drive the delay line to minimize the dif-ference between the two received transducer signals.  This func-tion minimizes ambient noise in the acoustic transmission line formed  by  the  column  of  drilling  fluids  when  no  data transmissions are being made.  Computer analysis and adjustment of the delay time effectively maximizes filtration of acoustic noise due to mud pump pulses and or reflections of noise from the pump thereof without limitation to the geometrical configuration or other noise related variables.
Patent CA-1237109-A (CA)
Inventor: TISHMAN ANDREW
IPC: B60Q1/076
Filed: 1984-06-21
Granted: 1988-05-24
Abstract: Abstract of the Disclosure An  apparatus  containing  a  headlight  gimballed  for rotation within the enclosure of the apparatus. The headlight is capable of exposure through an opening in the enclosure, and is capable  of  directional  adjustment  in  accordance  with  signals produced  at  a  remote  location.  A  cover  is  provided  for selectively  enclosing the opening which exposes the headlight, and is capable of selectively enclosing or exposing the opening in accordance with signals produced at a remote location.
Patent CA-1223780-A (CA)
Inventor: RASHID JAMES M
IPC: C23C12/00
Filed: 1984-06-27
Granted: 1987-07-07
Abstract: Chromium Boron Surfaced Nickel-Iron Base Alloys Abstract Chromium boron diffusion coatings on nickel iron alloys uniquely provide them with improvement in high cycle fatigue strength (up to 30%) and erosion resistance (up to 15 times), compared to uncoated alloy.  The diffused chromium layer ex-tends in two essential concentration zones to a total depth of about 40 x 10-6 m, while the succeeding boron layer is limited to 50-90% of the depth of the richest Cr layer nearest the surface. Both coatings are applied using conventional pack diffusion processes.
Patent CA-1246279-A (CA)
Inventor: VASTA JOSEPH A
IPC: C09D127/12
Filed: 1984-06-28
Granted: 1988-12-06
Abstract: TITLE Primer Composition of a Fluorocarbon Polymer and an Amino Alkyl Alkoxy Silane ABSTRACT A primer composition for fluorocarbon polymer coatings which cures at ambient temperatures and contains a fluorocarbon polymer of vinylidene fluoride and hexafluoropropylene and has a weight average molecular weight of about 50,000-300,000;           a metallic oxide such as magnesium oxide which is an acid acceptor and an amino alkyl alkoxy silane; preferably, the primer contains a reinforcing pigment such as titanium dioxide;            The  primer is used in combination with fluorocarbon polymer coatings to provide corrosion and abrasion resistant coatings for equipment used in chemical plants, oil refineries, oil drilling platforms, and for the interior of smoke stacks of large utility companies.
Patent CA-1262647-A (CA)
Inventor: BACH IVAN
IPC: F16L3/04
Filed: 1984-08-30
Granted: 1989-11-07
Abstract: Abstract A clamp with a U-shaped head     and nail-like legs     is provided with embossments     pressed out of the material in that portion of the head     which is in alignment with the nail-like leg    , the embossments protruding to at least the height of the top of the U-shaped head    .
Patent CA-1255043-A (CA)
Inventor: SATO KYOSAKU
IPC: C08K3/16
Filed: 1984-09-14
Granted: 1989-05-30
Abstract: THERMOPLASTIC POLYMER COMPOSITIONS                Abstract of the Disclosure Thermoplastic compositions, and methods for producing such compositions, comprise crystalline polyamide and a synthetic rubbery polymer as polymeric materials and as additives, a first additive selected from the halides of lithium, magnesium, calcium and zinc and a second additive selected from the oxides and hydroxides of magnesium, calcium, barium and zinc and the peroxides of calcium and zinc.
Patent CA-1255221-A (CA)
Inventor: EPPSTEIN DEBORAH A
IPC: A61K38/21
Filed: 1984-10-11
Granted: 1989-06-06
Abstract: ABSTRACT OF THE DISCLOSURE     Combinations of 9-(1,3-dihydroxy-2-propoxymethyl) guanine or a pharmaceutically acceptable salt thereof, with .beta.-interferon show a surprisingly high degree of synergism in their activity against viral infections.
Patent CA-1237246-A (CA)
Inventor: MALPASS GERALD D JR
IPC: C08F32/08
Filed: 1984-11-01
Granted: 1988-05-24
Abstract: ABSTRACT        A beta-pinene monomer is sequentially contacted with a catalytic amount of a halide-free organoaluminum compound in an inert solvent, which catalyst is hydrolyzed and activated by the addition of water, and subsequently adding an alkyl halide and recovering the resin.  The hydrolyzed and activated organoaluminum compound is of the formula AlR3, wherein in R is hydrogen, oxyhydrocarbon or hydrocarbon radicals or mixtures thereof.  A catalytic amount of the organoaluminum compound is formed in an inert solvent by the addition of about 0.5 mole to about 1.0 mole of water per mole of the organoaluminum compound in the solvent.  A beta-pinene monomer is added to the hydrolyzed and activated organoaluminum compound in the solvent.  Then an alkyl halide of the general formula R'X is added, wherein in R' is H or hydrocarbon radical and X is a halide radical at a temperature from about 20°C to about 70°C over a period of time sufficient to complete the addition of the alkyl halide and to form a reaction mixture containing the polymerized beta-pinene.  The process provides water-white, hard beta-pinene resins which are useful in the manufacture of all types of adhesives, sealants and coatings as well as any other application where light colour resins are useful.
Patent CA-1227830-A (CA)
Inventor: CHAN VEN L
IPC: D06F75/26
Filed: 1985-03-04
Granted: 1987-10-06
Abstract: IRON WITH OVERTEMPERATURE PROTECTION MEANS                      ABSTRACT    An electric flatiron having an overtemperature protection assembly to open the heater circuit before high soleplate temperature occurs on thermostatic failure.          The invention is a structural arrangement of circuit members including a spring biased circuit member that is held in contact with another circuit member by a fusible joint including a slug of eutectic alloy.  The fusible joint is external to the electric circuit so that the operation of the overtemperature limiter is not affected by any variable joint resistance.  When the fusible joint melts, it releases the spring member that is snapped out of contact to open the circuit on failure of the thermostat in the iron.
Patent CA-1264305-A (CA)
Inventor: FLYNN PETER J
IPC: B04C3/04
Filed: 1985-03-18
Granted: 1990-01-09
Abstract: HYDROCYCLONE SEPARATOR APPARATUS                Abstract of the Disclosure Hydrocyclone separator apparatus includes hydrocyclone separator(s) capable of separating light impurities from a paper-making fiber slurry.  The separator inner wall is cylindrical with an apertured inlet portion adjacent one end which directs feed slurry in a vortical path along the wall to an enlarged inlet to an axial flow passage adjacent the other end.  This inlet has a rim spaced radially from the wall which skims an inner part from the vortex containing predominantly the light impurities into the axial passage from which it is discharged through an apertured outlet portion of the sidewall.  The remainder of the slurry vortex passes the rim to be discharged through another apertured outlet portion of the sidewall.  The apparatus also includes manifold structure providing three manifolds having parallel sidewalls with seal-lined openings through which the separator(s) may be endwise inserted to or withdrawn from operative position in which the inlet and outlets thereof are associated with respective manifolds.  The outer wall of the separator(s) is reduced in diameter for at least substantially half the length thereof to facilitate separator manipulation and reduce seal wear.  One manifold is spaced from the other two by at least substantially half of the separator length to expose the body portion of the separator(s) for hand manipulation.